Apple MacBook Air 13″ (M4) vs Apple MacBook Air (Mid 2009)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

MacBook Air 13″ (M4) compared with MacBook Air (Mid 2009)
AppleMacBook Air 13″ (M4)AppleMacBook Air (Mid 2009)
Overview
ReleasedMarch 2025June 2009
Display
Screen size13.6″13.3″
Resolution2560 × 1664 (better)1280 × 800
PanelIPS LCD–
Refresh rate60 Hz–
Brightness500 nits–
TouchscreenNoNo
Display typeLiquid Retina display; LED-backlit with IPS technologyGlossy LED-backlit widescreen LCD, millions of colours; panel technology, refresh rate and brightness unpublished by Apple.
Pixel density224 ppi–
Colour rangeWide colour (P3); 1 billion colours–
Display featuresTrue Tone–
Performance
ProcessorApple M4Intel Core 2 Duo SL9400 or Intel Core 2 Duo SL9600
CPU cores102
Graphics8-core GPU or 10-core GPUNVIDIA GeForce 9400M
AI engine (NPU)38 TOPS–
Memory16 GB, 24 GB or 32 GB (better)2 GB
Storage256 GB to 2 TB (better)120 GB to 128 GB
CPU10-core CPU with 4 performance cores and 6 efficiency coresDual-core Intel Core 2 Duo SL9400 at 1.86 GHz or SL9600 at 2.13 GHz, 6 MB shared L2 cache and 1066 MHz frontside bus. Exact identities confirmed by EveryMac and Notebookcheck.
GPU8-core or 10-core GPU; hardware-accelerated ray tracing; Media Engine with H.264, HEVC, ProRes and ProRes RAW acceleration and AV1 decodeNVIDIA GeForce 9400M with 256 MB of DDR3 SDRAM shared with main memory
AI engine16-core Neural Engine–
Memory typeUnified memory2 GB of 1066 MHz DDR3 onboard memory, not upgradeable
Memory bandwidth120 GB/s–
Storage typeSSD, configurable up to 2 TBThe 1.86 GHz base has a 120 GB 4200-rpm Serial ATA hard drive; the 2.13 GHz base has a 128 GB solid-state drive. Configurations preserve these published combinations. Optional external USB MacBook Air SuperDrive; no built-in optical drive.
CoolingFanless–
Battery and size
Battery life (maker's claim)Up to 18 hours–
Battery capacity53.8 Wh (better)40 Wh
Weight1.24 kg (better)1.36 kg
Thickness11.3 mm (better)19.4 mm
Width × depth304.1 × 215 mm325 × 227 mm
Battery life detailUp to 15 hours wireless web; lithium-polymer batteryBuilt-in 40 Wh lithium-polymer battery. Reference weight varies by configuration and manufacturing process; no runtime figure on the current maker technical sheet.
Charger30 W USB-C adapter with the 8-core GPU model; 35 W Dual USB-C Port adapter with the 10-core GPU model45 W MagSafe Power Adapter with cable management
Fast chargingWith the 70 W USB-C Power Adapter–
Materials100% recycled aluminium enclosure; more than 55% recycled content overallAluminium enclosure; tapered thickness from 4 to 19.4 mm
ColoursSky Blue, Silver, Starlight, MidnightSilver
Connections
Ports2 × Thunderbolt 4, MagSafe 3, headphone jackUSB-A, MagSafe, headphone jack
Wi-FiWi-Fi 6E802.11n draft; compatible with 802.11a/b/g
Bluetooth5.32.1 + EDR
Webcam12MP Center StageBuilt-in iSight camera
Operating systemmacOSmacOS
Port detail2 × Thunderbolt 4 (USB-C) with charging, DisplayPort, Thunderbolt 4 and USB 4 (up to 40 Gb/s); MagSafe 3; 3.5 mm headphone jack with high-impedance headphone supportOne USB 2.0 port up to 480 Mb/s, Mini DisplayPort video output, headphone jack and MagSafe. USB Ethernet Adapter supplied; DVI, VGA and dual-link DVI video adapters sold separately.
External displaysUp to two at up to 6K 60 Hz, alongside the built-in displayBuilt-in screen plus one external display up to 2560 × 1600, both with millions of colours; dual display and video mirroring
KeyboardBacklit Magic Keyboard, 78 (US) or 79 (ISO) keys including 12 full-height function keysFull-size backlit keyboard with ambient light sensor
TrackpadForce Touch trackpadMulti-Touch trackpad with two-finger scrolling, pinch, rotate, swipe, three-finger and four-finger swipe, tap, double-tap and drag gestures
SpeakersFour-speaker sound system; Spatial Audio with Dolby AtmosMono speaker
MicrophonesThree-mic array with directional beamforming; Voice Isolation and Wide Spectrum modesOmnidirectional microphone
BiometricsTouch ID–
In the box13-inch MacBook Air, 30 W or 35 W Dual USB-C Port power adapter (by model), USB-C to MagSafe 3 Cable (2 m)MacBook Air, 45 W MagSafe power adapter, AC wall plug, power cord, USB Ethernet Adapter, install/restore DVDs, display cleaning cloth and documentation; Mac OS X Leopard and iLife ’09

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